Finding the right diagnostic tool for a 1999 Saab 95 can be confusing due to the transition in OBD standards during the mid-90s. This article clarifies the compatibility issues and helps you choose the correct adapter for your car.
OBD-II became the federally mandated standard for 1996 model year vehicles and later. However, some manufacturers, including Saab, implemented a hybrid system in earlier models, often referred to as OBD 1.5. This system used a subset of OBD-II codes but might not be fully compatible with all OBD-II scanners.
Saab vehicles from 1994 and 1995 with the naturally aspirated 2.3L engine used this OBD 1.5 system. It’s important to note that different communication protocols were used during this transition period. While the OBD-II standard uses five different protocols (ISO 9141-2/KWP2000, ISO 14230-4 (KWP 2000), SAE J1850 PWM, SAE J1850 VPW, and CAN), pre-1996 Saabs may use a different protocol altogether.
This image depicts the pinout of an OBD-II connector utilizing the ISO 9141-2 protocol, common in many European and Asian vehicles. For ISO 9141-2/KWP2000 compliant vehicles, pins 4, 5, 7, and 16 should have metallic contacts, with a possible contact in pin 15 as well.
By 1999, the Saab 95 should be fully OBD-II compliant. Therefore, you’ll need a diagnostic tool and adapter designed for OBD-II. However, it’s crucial to ensure the tool supports the specific communication protocol used by your 1999 Saab 95. Consulting your vehicle’s owner’s manual or a trusted Saab specialist can confirm the correct protocol.
When selecting a diagnostic tool for your 1999 Saab 95, look for one that explicitly states compatibility with Saab vehicles and the OBD-II standard. Ensure it supports all five OBD-II protocols to guarantee proper communication and data retrieval. Choosing the correct tool will enable you to accurately diagnose any issues and perform necessary maintenance on your Saab.
In conclusion, while earlier Saab models might present compatibility challenges with OBD-II scanners due to the transitional OBD 1.5 system, a 1999 Saab 95 should be fully OBD-II compliant. Using a diagnostic tool specifically designed for OBD-II and confirming compatibility with your Saab’s specific communication protocol will ensure accurate diagnostics and efficient vehicle maintenance. Always refer to your owner’s manual or a qualified Saab technician for precise information regarding your car’s diagnostic system.
